Demopolis, AL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Demopolis, a city in Marengo County, Alabama.
Overnight
72°F
Mostly Clear
Mostly clear, with a low around 72. Wind around 0 mph.
7-day forecast for Demopolis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 72°F | Mostly Clear | 0 mph | 1% |
| Saturday | 99°F | Sunny then Chance Showers And Thunderstorms | 0 mph | 29% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 29% |
| Sunday | 96°F | Sunny | 0 mph | 10% |
| Sunday Night | 71°F | Mostly Clear | 0 mph | 10% |
| Monday | 96°F | Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 15% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 32% |
| Tuesday | 93°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 22% |
| Tuesday Night | 70°F | Slight Chance Showers And Thunderstorms | 0 mph | 22% |
| Wednesday | 92°F | Sunny | 5 to 10 mph N | 10% |
| Wednesday Night | 68°F | Mostly Clear | 5 to 10 mph N | 10% |
| Thursday | 88°F | Sunny | 5 to 10 mph N | 4% |
| Thursday Night | 65°F | Mostly Clear | 0 to 10 mph N | 4% |
| Friday | 87°F | Sunny | 5 to 10 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Demopolis (32.500, -87.827). Updated through the day.
Growing snapshot for Demopolis
Last spring frost
Mar 16
First fall frost
Nov 14
Growing season
241 days
Hardiness zone
8b
More local growing data for Demopolis: nearby ZIP 36742 weather · frost dates · planting calendar · Alabama frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Demopolis L&D, Al (8.6 mi from Demopolis). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.